Intro to viruses Flashcards
1
Q
Name the 6 factors/characteristics a virus has
A
- Natural history/life cycle
- Mode and efficiency of transmission
- Tropism (directional growth)
- Invasiveness
- Opportunism
- Virulence
2
Q
What 5 factors must a host have that may make them susceptible to viral infection
A
- Age
- Genetic predisposition
- Immune status
- Specific immunity (active/passive)
- Trauma/surgery/foreign body
3
Q
Do viruses colonise skin, like bacteria?
A
No
4
Q
Name 5 examples of sources of viruses
A
- social
- food/water
- ## environemntal
